ESOS Helpline
Type:201542416431
Material :Cast iron / stainless steel 304 / stainless steel
Inet diameter：15~300mm
Outlet diameter：15~300mm
Flow：1.5~1300m3/h
Operating temperature：＜60℃
Solid particles：Not allowed
Work permit pressure：≤1.6MPa
Allow experimental pressure：≤1.6MPa
product description
ISW series horizontal single-stage single-suction centrifugal pump is a new generation of energy-saving and environmentally-friendly horizontal centrifugal pump developed on the basis of absorbing the advanced technology of similar products at home and abroad and adopting the performance parameters of domestic common centrifugal pump. This series of pumps has excellent performance, high reliability, long life, reasonable structure, beautiful appearance and industry leading level.
Design range
Caliber: 15~500mm
Flow rate: 1.5~1200m3/h
Head: 5~125m
Power: 0.18~160kw
Frequency: 50HZ/60HZ
ISW horizontal centrifugal pump use:
ISW horizontal single-stage single-suction centrifugal pump for conveying clean water and other liquids with physical and chemical properties similar to clean water, suitable for industrial and urban water supply and drainage,
High-rise building pressurized water supply, garden sprinkler irrigation, fire booster, long-distance transportation, HVAC refrigeration cycle, bathroom and other cold and warm water circulation pressurization and equipment matching,
The use temperature T < 60 ° C.
ISW horizontal centrifugal pump installation points:
1) The following review should be made before the pump is in place; the size, position and elevation of the foundation should meet the design requirements; the equipment should not have missing parts, damage and rust, etc.
The nozzle protection and plugging should be in good condition; the disc should be flexible, without blockage, jamming, and no abnormal sound.
2) Parts that have been assembled and commissioned at the factory should not be dismantled at will.
3), the leveling of the pump installation is correct. The height of the pump foundation above the ground should be easy for the pump to be installed and should not be less than 0.1m. Pump transport to designated location
After the installation, the equipment is lifted and installed, accurately placed on the basis of the equipment already completed, and then the anchor bolts are put on and the nuts are placed, and the horn is placed under the base.
The level is initially leveled and the anchor bolts are filled with concrete. After the solidification of the concrete is completed, leveling and tightening the anchor bolts, each set of horns to point
Soldering and fixing, the base surface is roughened, and the water is rinsed and then smoothed with cement mortar.
4) Pipe installation should meet the following requirements:
a, the inside of the pipe and the pipe end should be cleaned, the sealing surface and the thread should not be damaged, the flange end face or the threaded axis of the interconnect should be parallel and centered, should not
Forcibly connected. The pipe weight should not be added to the pump and should have its own support.
b. After the pipeline is connected with the pump, it should not be welded or gas-cut on it. If welding or gas cutting is required, the pipeline should be removed or necessary measures should be taken to prevent welding slag.
Parts that enter the pump and damage the pump. After the installation is completed, the pump shaft and the impeller should be driven without friction or jamming. Otherwise, the pump should be disassembled for inspection.
c. The configuration of the pipeline should be re-examined according to the equipment data and design drawings.
d. Valves, check valves and pressure gauges shall be installed on the outlet pipe of each pump; when the pump directly pumps water from the outdoor water supply pipe, valves shall be installed on the suction pipe.
Check valves and pressure gauges, and a bypass valve with a valve should be placed around the pump.
5) Vibration isolation and noise prevention of the pump: It is advisable to install a flexible rubber joint or a bellows metal joint on the water inlet and outlet pipes; the pipe bracket should adopt an elastic hanger,
Elastic bracket; in order to create a good vibration isolation effect, the basic vibration isolation, pipe vibration isolation and bracket vibration isolation must be matched, and the area of the vibration isolation pad (shock absorber),
The number and number of layers, models, and types of flexible joints must be selected and installed according to the calculation results. Damper type, positioning size, optional quantity
The parameters are directly related to the stability and damping effect of the pump. The determination of this parameter must be confirmed by the expert's technical staff. Water pump pressure
When the pipeline passes through the wall and the floor, measures to prevent solid sound transmission should be taken.
6), pump debugging points On the premise that the electrical control ensures safety and reliability, the single-machine test run of the pump is carried out. Close the valve on the pump outlet pipe,
Start with the pump and then gradually open, and check for abnormalities, motor temperature rise, pump operation, pressure gau
Possible causes: a. No liquid storage or insufficient liquid storage in the pump body.
Remedy: a, add enough.
Possible causes: b. The inlet and outlet valves are not open, the inlet and outlet pipes are blocked, and the impeller flow passage is blocked.
Remedy: b, check, remove obstructions.
Possible causes: c, the motor is running in the wrong direction, the motor phase is slow
Remedy: c. Adjust the motor direction and tighten the motor wiring.
Possible causes: d, the suction pipe leaks.
Remedy: d. Tighten the sealing surfaces to remove air.
Possible causes: e. Reduce suction or shorten the line.
Remedy: e. Insufficient imported water supply, too high suction stroke, or long suction line, check the line for repair.
Possible causes: f. Excessive pipe resistance and improper pump selection.
Remedy: f, reduce pipe bends, re-select the pump.
Possible causes: h, the density of the pumping medium is higher or the viscosity is higher
Remedy: h, dilute to reduce concentration or reduce viscosity.
2, the pump flow is insufficient
Possible causes: a. Check by 1 first.
Remedy: a, first press 1 to exclude.
Possible causes: b. Pipes, impeller flow passages are partially blocked, and scale deposits.
Remedy: b. Remove the obstruction and readjust the valve opening.
Possible causes: c, the voltage is low.
Remedy: c, voltage regulation.
Possible causes: d, impeller wear
Remedy: d, replace the impeller.
3, the power is too large
Possible causes: a. Exceeding the rated flow rate
Remedy: a, adjust the flow, close the small outlet valve.
Possible causes: b, the suction is too high
Remedy: b, reduce the suction
Possible causes: c, pump bearing wear
Remedy : C, replace the bearing
4, noise vibration
Possible causes: a. Unstable pipeline support
Remedy: a, stable pipeline
Possible causes: b, liquid mixed with gas
Remedy: b, reduce the degree of vacuum
Possible causes: c. Generate cavitation
Remedy: c, replace the bearing
Possible causes: d, bearing damage
Remedy: d, adjust by 5
5, motor heating
Possible causes: a, excessive flow, overload operation
Remedy: a, close the small outlet valve
Possible causes: b, rubbing
Remedy: b, check for exclusion
Possible causes: c. Motor bearing damage
Remedy : C, replace the bearing
Possible causes: d, insufficient voltage
Remedy: d, voltage regulator
6, the pump leaks or oil
Possible causes: a, mechanical seal wear
Remedy: a, replace
Possible causes: b. The pump body has sand holes or cracks
Remedy: b, weld repair or replacement
Possible causes: c. The sealing surface is not flat
Remedy: c, trimming
Possible causes: d, loose installation bolts
Remedy: d, fasten
Installation Notes
1. The weight of the pipeline should not be added to the water pump during installation. There should be separate support bodies to avoid the deformation of the pump affecting the running performance and life.
2, the pump and the motor are the overall structure, no need to find the right when installing, very convenient.
3. The anchor bolts must be tightened during installation to avoid the impact of vibration on the pump performance during start-up.
4. Before installing the water pump, carefully check whether there are any hard objects (such as stones, iron particles, etc.) that affect the operation of the pump in the pump flow path, so as to avoid damage to the impeller and the pump body when the pump is running.
5. For the convenience of maintenance and safety of use, install a regulating valve on the inlet and outlet pipes of the pump and install a pressure gauge near the pump outlet to ensure operation within the rated head and flow range to ensure the normal operation of the pump and increase. The service life of the pump.
6. When the pump is used for suction, it should be equipped with a bottom valve, and the inlet pipeline should not have too many bends, and there should be no leakage or air leakage.
7. The discharge line such as the check valve should be installed outside the gate valve.
8. After the pump shaft is installed, the impeller should be free of friction or jamming. Otherwise, the pump should be disassembled for inspection.
9. The installation method of the pump is divided into hard connection and flexible connection installation.
Start and stop
(1) Preparation before starting
1. Turn the motor fan blades by hand, the impeller should have no card grinding phenomenon and the rotation is flexible.
2. Open the inlet valve, open the exhaust valve to fill the entire pump chamber, and then close the exhaust valve.
3. Move the pump by hand to make the lubricating fluid enter the mechanical seal end face.
4. Jog the motor to determine if the steering is correct.
(2) Starting and running
1. Open the inlet valve and close the discharge line valve.
2. Turn on the power. When the pump reaches the normal speed, gradually open the valve on the discharge line and adjust to the required working condition.
3, pay attention to observe the meter reading, check the shaft seal leakage, normal mechanical seal leakage <3 drops / min, check the motor, bearing temperature rise <70. C,
If an abnormal situation is found, it should be handled in time.
(three) parking
1. Gradually close the spout pipe and cut off the power.
2. Close the inlet valve.
3. If the ambient temperature is below zero. C, the liquid in the pump should be drained to avoid cracking.
4. If the vehicle is to be deactivated for a long time, the pump should be disassembled, cleaned, and stored.
Pump maintenance and care
(1) Maintenance and maintenance during operation
1, the water inlet pipe must be highly sealed
2. It is forbidden to operate the pump for a long time under cavitation.
3. It is forbidden to run the motor over a long period of time when the pump is running at high flow rate.
4. Regularly check the motor current value during pump operation and must not exceed the rated current of the motor.
5, the pump should be guarded during the operation to avoid accidents.
6. The pump should be refueled every 500 hours of operation. The motor power is greater than llkW and equipped with a fueling device. It can be directly injected with a high-pressure oil gun to ensure the shaft.
Excellent lubrication.
7. After long-term operation of the pump, due to mechanical wear, when the noise and vibration of the unit increase, stop the inspection and replace the vulnerable parts and bearings if necessary.
The overhaul period of the unit is generally one year.
(2) Mechanical seal maintenance and maintenance
1. Mechanical seal lubrication should be cleaned without solid particles.
2. It is strictly forbidden to work mechanical seals under dry grinding conditions.
3. The pump (motor) should be driven a few times before starting to avoid breakage of the seal ring caused by sudden start.
The structure is shown. The unit consists of three parts: pump, motor and base. The pump structure consists of pump body, impeller, pump cover, mechanical seal and other components. The pump is a single-stage single-suction horizontal centrifugal type, and the pump body and the pump cover are divided from the back surface of the impeller, that is, the rear opening structure. Most pumps have a seal ring on the front and rear of the impeller, and a balance hole on the rear cover of the impeller to balance the axial force acting on the rotor. The pump inlet is axially horizontally drawn and the outlet is vertically upward. The pump and the motor are coaxial, and the motor shaft extension end adopts a double-angle contact ball bearing structure to partially balance the residual axial force of the pump. The pump is directly connected to the motor, no need to be calibrated during installation, has a common base, and uses JG type
1 compact structure. The series of pumps are horizontal structure, integrated with pump and pump, beautiful appearance and small floor space. Compared with ordinary horizontal pumps, the floor space is reduced by 30%. If the IP54 outdoor motor is used, there is no need for a pump room and it can be used outdoors.
2. Smooth operation, low noise, and high component concentricity. The motor and the pump are directly connected, which simplifies the intermediate structure and increases the smoothness of the operation. The impeller has excellent dynamic and static balance, no vibration and low noise during operation, prolongs the service life of the bearing and improves the use environment.
3. The shaft seal is made of high quality mechanical seal. The dynamic and static rings are made of hard alloy, which is wear-resistant, leak-free and has a long service life.
4. The advanced hydraulic model features high efficiency and good performance.
5. Unique structure. The lower side of the pump body is provided with a water discharge hole, and the inlet and outlet flanges are provided with pressure-receiving holes to ensure normal use and maintenance of the pump.
6. The series of horizontal pump inlets are horizontal and the outlets are vertically upwards to facilitate piping layout.
You are welcome to consult at any time
